Used primarily as a scavenger for lead deposits in internal combustion engines, helping to remove lead residues from engine components when used in leaded gasoline. Also applied in the synthesis of other brominated compounds and as a fumigant for soil and agricultural products to control pests and nematodes. Historically used as a pesticide and in the preparation of vinyl monomers, though many of these uses have declined due to toxicity and environmental concerns. Occasionally employed in laboratory settings as a brominating agent or solvent in specialized reactions.